dc.contributor.author |
Sakakibara, K |
|
dc.contributor.author |
Chithra, P |
|
dc.contributor.author |
Das, B |
|
dc.contributor.author |
Mori, T |
|
dc.contributor.author |
Akada, M |
|
dc.contributor.author |
Labuta, J |
|
dc.contributor.author |
Tsuruoka, T |
|
dc.contributor.author |
Maji, S |
|
dc.contributor.author |
Furumi, S |
|
dc.contributor.author |
Shrestha, L K |
|
dc.contributor.author |
Hill, J P |
|
dc.contributor.author |
Acharya, S |
|
dc.contributor.author |
Ariga, K |
|
dc.contributor.author |
Ajayaghosh, A |
|
dc.date.accessioned |
2014-08-08T05:05:43Z |
|
dc.date.available |
2014-08-08T05:05:43Z |
|
dc.date.issued |
2014 |
|
dc.identifier.citation |
Journal of the American Chemical Society 136(24):8548-8551;18 Jun 2014 |
en_US |
dc.identifier.issn |
0002-7863 |
|
dc.identifier.uri |
http://ir.niist.res.in:8080/jspui/handle/123456789/1606 |
|
dc.description.abstract |
Linear pi-gelators self-assemble into entangled fibers in which the molecules are arranged perpendicular to the fiber long axis. However, orientation of gelator molecules in a direction parallel to the long axes of the one-dimensional (1-D) structures remains challenging. Herein we demonstrate that, at the air-water interface, an oligo(p-phenylenevinylene)-derived pi-gelator forms aligned nanorods of 340 +/- 120 nm length and 34 +/- 5 nm width, in which the gelator molecules are reoriented parallel to the long axis of the rods. The orientation change of the molecules results in distinct excited-state properties upon local photoexcitation, as evidenced by near-field scanning optical microscopy. A detailed understanding of the mechanism by which excitation energy migrates through these 1-D molecular assemblies might help in the design of supramolecular structures with improved charge-transport properties. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
American Chemical Society |
en_US |
dc.subject |
Pi-gelators |
en_US |
dc.subject |
Oligo(p-phenylenevinylene) |
en_US |
dc.subject |
Molecular orientation |
en_US |
dc.subject |
Excited-state properties |
en_US |
dc.title |
Aligned 1-D nanorods of a pi-gelator exhibit molecular orientation and excitation energy transport different from entangled fiber networks |
en_US |
dc.type |
Article |
en_US |